The Phthaloyl chloride with cas registry number of 88-95-9 belongs to the classes of acid chlorides. Its EINECS registry number is 201-869-0. Its systematic name and IUPAC name are the same which is called benzene-1,2-dicarbonyl chloride. With appearance of clear yellow liquid, this chemical is also known as 1,2-Benzenedicarbonyl dichloride; o-Phthaloyl chloride.

Physical properties about this chemical are: (1)ACD/LogP: 1.65; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.65; (4)ACD/LogD (pH 7.4): 1.65; (5)ACD/BCF (pH 5.5): 10.58; (6)ACD/BCF (pH 7.4): 10.58; (7)ACD/KOC (pH 5.5): 188.35; (8)ACD/KOC (pH 7.4): 188.35; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 34.14 Å²; (13)Index of Refraction: 1.571; (14)Molar Refractivity: 46.74 cm³; (15)Molar Volume: 142.2 cm³; (16)Surface Tension: 48.2 dyne/cm; (17)Density: 1.427 g/cm³; (18)Flash Point: 135.4 °C; (19)Enthalpy of Vaporization: 52.05 kJ/mol; (20)Boiling Point: 281.7 °C at 760 mmHg; (21)Vapour Pressure: 0.00351 mmHg at 25°C; (22)Refractive index: n20/D 1.568(lit.).

When you are using this chemical, please be cautious about it as the following:
This chemical is sensitive to moisture. It can cause burns. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you feel unwell, seek medical advice immediately (show the label whenever possible.). So you'd better wear suitable protective clothing, gloves and eye/face protection when you are using it.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(Cl)c1ccccc1C(Cl)=O;
(2)InChI: InChI=1/C8H4Cl2O2/c9-7(11)5-3-1-2-4-6(5)8(10)12/h1-4H;
(3)InChIKey: FYXKZNLBZKRYSS-UHFFFAOYAB